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drainage directly north of Pond 007 for Lift A. During Phase 6 topsoil campaign, 2.4 feet of 808 <br />soil was removed from the drainage area and used for mixed topsoil replacement. The soil <br />map shows the 808 depth being 2.4 feet in the drainage area. There is more 808 to be <br />salvaged. The 808 soil looks good and should make great Lift A material. WFC will test the <br />remaining 808 to verify its quality. This was done in the Annual Reports submitted to the <br />Division, which showed that this material was suitable as subsoil. As of February 2008, these <br />areas have been fully reclaimed to the topsoil depths shown on Map 2.05.4 -4. <br />Initially, it was reported that an area of approximately 6.73 acres immediately east of Mount <br />Nucla (box cut overburden stockpile) was only covered with 0.8 feet of topsoil. This was <br />incorrect. The postmine topsoil replacement map, Map 2.05.4 -4 shows the actual replacement, <br />which is 18" of Lift A and 27" of Lift B. <br />8.4 Topsoil Salvage Depths - 1998/1999 Study Area <br />In 1998 WFC conducted a detailed soil survey and topsoil survey (Map 2.04.9 -1) for the <br />proposed 1998/1999 mine permit expansion area. This included land to the north of BB Road <br />and west of 2700 Road. The conclusions of this study are in Table 2.04.9 -3 and 4. These tables <br />are based on the volumes for each soil type. Table 2.05.4(2)(d) -5 shows the actual thicknesses <br />that were stripped in the areas that have already been disturbed and the stripping depths that <br />are planned for the remainder of the undisturbed area west of 2700 Road. <br />8.5 Stripping Prior to February 2008 <br />Prior to February 2008, the 1998/1999 expansion area was stripped in one mixed lift which was <br />basically the A and B lifts combined. For the Benson West and Lloyd properties, the average <br />mixed lift stripping thickness was 18 inches. The mixed lift is confirmed by the data in the 1998 <br />study, which shows that Lift A on the Benson West and Lloyd properties is only 8 -11 inches <br />thick (at 80% recovery). Therefore, Lift B was taken in its entirety using an average of 18" <br />stripped. In addition, the Bench 1 material was stripped and placed as suitable subsoil to a <br />depth of approximately 30 inches. <br />(Revised October 2009) 2.05.4(2)(d) -26 <br />